How to Propagate clematis 'Helios'?
Propagate by layering or semi-hardwood cuttings

clematis 'Helios' · Clematis 'Helios'
Also known as: clematis [Aztek]; clematis 'Sun Stor'
Plant in a moisture-retentive, well-drained soil, with the roots and base of the plant kept cool and shaded by other plants or a layer of pebbles at the base. Plant with the crown 5-8cm (2-3in) deep to encourage new shoots to grow from below ground level. See clematis cultivation
Propagate by layering or semi-hardwood cuttings